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Finding the Fourth Proportional to 123,022.80, 184,524.60 and 48,128.40

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Solution

The fourth proportional to 123,022.80, 184,524.60 and 48,128.40 is: 72,188.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,022.80 : 184,524.60 = 48,128.40 : x
  2. Step 2: Convert to fraction form
    123,022.80/184,524.60 = 48,128.40/x
  3. Step 3: Cross multiply
    123,022.80x = 184,524.60 × 48,128.40
  4. Step 4: Simplify right side
    123,022.80x = 8,880,873,758.64
  5. Step 5: Solve for x
    x = 8,880,873,758.64/123,022.80
  6. Step 6: Final answer
    x = 72,188.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.